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<DIV CLASS="navbar"><A HREF="http://vt100.net/"><IMG CLASS="button" SRC="vt100.net-logo.png" ALT="VT100.net" HEIGHT="16" WIDTH="102"></A> VT220 Programmer Reference Manual<TABLE WIDTH="100%">
<COL SPAN="3" WIDTH="33%">
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<TR>
<TD ALIGN="LEFT"><A HREF="chapter3.html">Chapter 3</A></TD>
<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
</TR>
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</TABLE>
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<TABLE ID="T3-5">
<CAPTION>Table 3-5 Keys Used to Generate 7-Bit Control Characters</CAPTION>
<THEAD>
<TR VALIGN="BOTTOM">
<TH ALIGN="LEFT">Control<BR>Character<BR>Mnemonic</TH>
<TH ALIGN="LEFT">Code</TH>
<TH ALIGN="LEFT">Key Pressed with<BR>CTRL (All Modes)</TH>
<TH ALIGN="LEFT">Dedicated Function Key</TH>
</TR>
</THEAD>
<TBODY>
<TR>
<TD>NUL</TD>
<TD>0/00</TD>
<TD>2, space</TD>
<TD></TD>
</TR>
<TR>
<TD>SOH</TD>
<TD>0/01</TD>
<TD>A</TD>
<TD></TD>
</TR>
<TR>
<TD>STX</TD>
<TD>0/02</TD>
<TD>B</TD>
<TD></TD>
</TR>
<TR>
<TD>ETX</TD>
<TD>0/03</TD>
<TD>C</TD>
<TD></TD>
</TR>
<TR>
<TD>EOT</TD>
<TD>0/04</TD>
<TD>D</TD>
<TD></TD>
</TR>
<TR>
<TD>ENQ</TD>
<TD>0/05</TD>
<TD>E</TD>
<TD></TD>
</TR>
<TR>
<TD>ACK</TD>
<TD>0/06</TD>
<TD>F</TD>
<TD></TD>
</TR>
<TR>
<TD>BEL</TD>
<TD>0/07</TD>
<TD>G</TD>
<TD></TD>
</TR>
<TR>
<TD>BS</TD>
<TD>0/08</TD>
<TD>H</TD>
<TD>F12 (BS)*</TD>
</TR>
<TR>
<TD>HT</TD>
<TD>0/09</TD>
<TD>I</TD>
<TD>TAB</TD>
</TR>
<TR>
<TD>LF</TD>
<TD>0/10</TD>
<TD>J</TD>
<TD>F13 (LF)*</TD>
</TR>
<TR>
<TD>VT</TD>
<TD>0/11</TD>
<TD>K</TD>
<TD></TD>
</TR>
<TR>
<TD>FF</TD>
<TD>0/12</TD>
<TD>L</TD>
<TD></TD>
</TR>
<TR>
<TD>CR</TD>
<TD>0/13</TD>
<TD>M</TD>
<TD>RETURN</TD>
</TR>
<TR>
<TD>SO</TD>
<TD>0/14</TD>
<TD>N</TD>
<TD></TD>
</TR>
<TR>
<TD>SI</TD>
<TD>0/15</TD>
<TD>O</TD>
<TD></TD>
</TR>
<TR>
<TD>DLE</TD>
<TD>1/00</TD>
<TD>P</TD>
<TD></TD>
</TR>
<TR>
<TD>DC1</TD>
<TD>1/01</TD>
<TD>Q**</TD>
<TD></TD>
</TR>
<TR>
<TD>DC2</TD>
<TD>1/02</TD>
<TD>R</TD>
<TD></TD>
</TR>
<TR>
<TD>DC3</TD>
<TD>1/03</TD>
<TD>S**</TD>
<TD></TD>
</TR>
<TR>
<TD>DC4</TD>
<TD>1/04</TD>
<TD>T</TD>
<TD></TD>
</TR>
<TR>
<TD>NAK</TD>
<TD>1/05</TD>
<TD>U</TD>
<TD></TD>
</TR>
<TR>
<TD>SYN</TD>
<TD>1/06</TD>
<TD>V</TD>
<TD></TD>
</TR>
<TR>
<TD>ETB</TD>
<TD>1/07</TD>
<TD>W</TD>
<TD></TD>
</TR>
<TR>
<TD>CAN</TD>
<TD>1/08</TD>
<TD>X</TD>
<TD></TD>
</TR>
<TR>
<TD>EM</TD>
<TD>1/09</TD>
<TD>Y</TD>
<TD></TD>
</TR>
<TR>
<TD>SUB</TD>
<TD>1/10</TD>
<TD>Z</TD>
<TD></TD>
</TR>
<TR>
<TD>ESC</TD>
<TD>1/11</TD>
<TD>3,[</TD>
<TD>F11 (ESC)*</TD>
</TR>
<TR>
<TD>FS</TD>
<TD>1/12</TD>
<TD>4,/</TD>
<TD></TD>
</TR>
<TR>
<TD>GS</TD>
<TD>1/13</TD>
<TD>5,]</TD>
<TD></TD>
</TR>
<TR>
<TD>RS</TD>
<TD>1/14</TD>
<TD>6,~</TD>
<TD></TD>
</TR>
<TR>
<TD>US</TD>
<TD>1/15</TD>
<TD>7,?</TD>
<TD></TD>
</TR>
<TR>
<TD>DEL</TD>
<TD>7/15</TD>
<TD>8</TD>
<TD>DELETE</TD>
</TR>
<TR>
<TD COLSPAN="4">* Keys F11, F12, and F13 generate these 7-bit control characters
only when the terminal is operated in VT100 mode or VT52 mode.</TD>
</TR>
<TR>
<TD COLSPAN="4">** These keystrokes are enabled only if XOFF support is disabled.
If XOFF support is enabled, then CTRL-S is a "hold screen"
local function and CTRL-Q is an "unhold screen" local function.</TD>
</TR>
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<TD ALIGN="LEFT"><A HREF="chapter3.html">Chapter 3</A></TD>
<TD ALIGN="CENTER"><A HREF="contents.html">Contents</A></TD>
<TD ALIGN="RIGHT">&nbsp;</TD>
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